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The AHT20 is described as a new generation of temperature and humidity sensor, setting a new standard in terms of both size and performance compared to older sensor designs. It outputs fully calibrated digital signals in standard IIC (I2C) format, meaning a microcontroller can read accurate temperature and humidity values directly over I2C without applying its own calibration curve, and the sensor's small SMD package, just 3mm by 3mm with a 1.0mm height, makes it suitable for reflow soldering directly onto a custom PCB in space-constrained designs.
Measuring range covers the full 0% to 100% relative humidity scale, and temperature range spans -40C to +85C, giving it genuine versatility from typical indoor room monitoring through to more demanding outdoor, greenhouse or industrial environments.
Communication uses a Grove I2C interface, and the sensor is noted for excellent long-term stability along with quick response and strong anti-jamming capability, meaning it resists drift over time and holds up against electrical noise better than some older analog or resistive humidity sensor designs. Operating voltage runs from 2.0V to 5.5VDC, a wide range that covers both 3.3V and 5V microcontroller platforms directly.
Because it uses a standard Grove I2C connector, it's straightforward to wire into a project that already uses Grove-format modules, and its combination of full calibration and a wide voltage range removes much of the interfacing complexity that comes with older uncalibrated humidity sensors.
Anyone building an environmental monitor, weather station or industrial sensing project that needs an accurate, pre-calibrated temperature and humidity reading over I2C, in a compact footprint suitable for a custom PCB, will find the AHT20 a modern, dependable choice.
I2C, through a Grove I2C connector.
0% to 100% RH.
-40C to +85C.
Yes, it outputs fully calibrated digital signals.
2.0V to 5.5VDC.
| Brand | Generic |
|---|---|
| Selling unit | PCS |
